511402201 has 2 divisors, whose sum is σ = 511402202. Its totient is φ = 511402200.

The previous prime is 511402193. The next prime is 511402273. The reversal of 511402201 is 102204115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 314140176 + 197262025 = 17724^2 + 14045^2 .

It is a cyclic number.

It is not a de Polignac number, because 511402201 - 2³ = 511402193 is a prime.

It is a super-2 number, since 2×511402201² = 523064422375288802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (511802201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255701100 + 255701101.

It is an arithmetic number, because the mean of its divisors is an integer number (255701101).

Almost surely, 2^511402201 is an apocalyptic number.

It is an amenable number.

511402201 is a deficient number, since it is larger than the sum of its proper divisors (1).

511402201 is an equidigital number, since it uses as much as digits as its factorization.

511402201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 511402201 is about 22614.2035234496. The cubic root of 511402201 is about 799.6885250991.

Adding to 511402201 its reverse (102204115), we get a palindrome (613606316).

The spelling of 511402201 in words is "five hundred eleven million, four hundred two thousand, two hundred one".